Graywolf said:

Green comes from chlorophyll, which is held in place in the plant by chlorophyll water soluble binding proteins (WSCP). These proteins are soluble in water, mildly soluble in alcohol, and insoluble in non polar solvents.

Butane is non polar, but will still absorb up to 32 ml/liter water, which can break down these proteins and expose the chlorophyll to be transported away in the form of micelle.

Ostensibly, the ability of a non polar solvent to transport these micelle, is proportional to the amount of water that it has picked up, as the water is doing the transporting.

I sometimes pick up a light electric green hue extracting with butane, but never a dark green. The amount of green appears to be influenced by the water content of the starting material, temperature, and soak time, as well as how many leaf margins are broken, so as to expose the chlorophyll binding proteins to water. Finely ground material exposes more margins, and extracts more chlorophyll.

PS: Filtration can influence green pick up too, from suspended particles.

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Graywolf said:

Green comes from chlorophyll, which is held in place in the plant by chlorophyll water soluble binding proteins (WSCP). These proteins are soluble in water, mildly soluble in alcohol, and insoluble in non polar solvents.

Butane is non polar, but will still absorb up to 32 ml/liter water, which can break down these proteins and expose the chlorophyll to be transported away in the form of micelle.

Ostensibly, the ability of a non polar solvent to transport these micelle, is proportional to the amount of water that it has picked up, as the water is doing the transporting.

I sometimes pick up a light electric green hue extracting with butane, but never a dark green. The amount of green appears to be influenced by the water content of the starting material, temperature, and soak time, as well as how many leaf margins are broken, so as to expose the chlorophyll binding proteins to water. Finely ground material exposes more margins, and extracts more chlorophyll.

PS: Filtration can influence green pick up too, from suspended particles.

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jump said:

Judging by the links you assume that the water dissolves or weakens the attachment of grains of chlorophyll within the chloroplast?
..

But even in these articles they write that the membranes are hydrophobic and water-soluble proteins are rare.




All chlorophyll (Chl)-binding proteins involved in photosynthesis of higher plants are hydrophobic membrane proteins integrated into the thylakoids. However, a different category of Chl-binding proteins, the so-called water-soluble Chl proteins (WSCPs), was found in members of the Brassicaceae, Polygonaceae, Chenopodiaceae, and Amaranthaceae families.

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jump said:

Green algae successfully maintain chlorophyll in their chloroplasts despite the constant action of salt water.
Salt water does not dissolve the chlorophyll (Chl)-binding proteins because they are not soluble in water.
For the same reason, the rain did not wash away the chlorophyll from the leaves of land plants.

Water-soluble proteins were found only in a few plants families, but not in cannabis.



Perhaps the cause of the green color of the extract should be sought elsewhere.

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